997447696 has 40 divisors (see below), whose sum is σ = 2216911680. Its totient is φ = 425875584.

The previous prime is 997447679. The next prime is 997447697. The reversal of 997447696 is 696744799.

997447696 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (997447697) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13575 + ... + 46681.

It is an arithmetic number, because the mean of its divisors is an integer number (55422792).

Almost surely, 2^997447696 is an apocalyptic number.

It is an amenable number.

997447696 is an abundant number, since it is smaller than the sum of its proper divisors (1219463984).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

997447696 is a wasteful number, since it uses less digits than its factorization.

997447696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33391 (or 33385 counting only the distinct ones).

The product of its digits is 20575296, while the sum is 61.

The square root of 997447696 is about 31582.3953493081. The cubic root of 997447696 is about 999.1485071657.

The spelling of 997447696 in words is "nine hundred ninety-seven million, four hundred forty-seven thousand, six hundred ninety-six".